1.首先jsp页面要使用UTF-8编码，个人建议将pageEncoding与contentType中的编码全部设置为UTF-8
2.修改tomcat配置文件server.xml,添加一个属性[红色部分]，如下
<Connector
port="8080" maxHttpHeaderSize="8192"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
connectionTimeout="20000" disableUploadTimeout="true" URIEncoding="UTF-8" />
3.编写过滤器类
1. public class SetCharacterEncodingFilter implements Filter {
2.
3. protected String encoding = null;
4.
5. protected FilterConfig filterConfig = null;
6.
7. protected boolean ignore = true;
8.
9. /*
10. * (non-Javadoc)
11. *
12. * @see javax.servlet.Filter#destroy()
13. */
14. public void destroy() {
15.
16. this.encoding = null;
17. this.filterConfig = null;
18.
19. }
20.
21. /*
22. * (non-Javadoc)
23. *
24. * @see javax.servlet.Filter#doFilter(javax.servlet.ServletRequest,
25. * javax.servlet.ServletResponse, javax.servlet.FilterChain)
26. */
27. public void doFilter(ServletRequest request, ServletResponse response,
28. FilterChain chain) throws IOException, ServletException {
29.
30. // Conditionally select and set the character encoding to be used
31. if (ignore || (request.getCharacterEncoding() == null)) {
32. String encoding = selectEncoding(request);
33. if (encoding != null)
34. request.setCharacterEncoding(encoding);
35. }
36.
37. // Pass control on to the next filter
38. chain.doFilter(request, response);
39. }
40.
41. /*
42. * (non-Javadoc)
43. *
44. * @see javax.servlet.Filter#init(javax.servlet.FilterConfig)
45. */
46. public void init(FilterConfig filterConfig) throws ServletException {
47.
48. this.filterConfig = filterConfig;
49. this.encoding = filterConfig.getInitParameter("encoding");
50. String value = filterConfig.getInitParameter("ignore");
51. if (value == null)
52. this.ignore = true;
53. else if (value.equalsIgnoreCase("true"))
54. this.ignore = true;
55. else if (value.equalsIgnoreCase("yes"))
56. this.ignore = true;
57. else
58. this.ignore = false;
59.
60. }
61.
62. /*
63. *
64. */
65. protected String selectEncoding(ServletRequest request) {
66.
67. return (this.encoding);
68.
69. }
70.
71. }
public class SetCharacterEncodingFilter implements Filter {
protected String encoding = null;
protected FilterConfig filterConfig = null;
protected boolean ignore = true;
/*
* (non-Javadoc)
*
* @see javax.servlet.Filter#destroy()
*/
public void destroy() {
this.encoding = null;
this.filterConfig = null;
}
/*
* (non-Javadoc)
*
* @see javax.servlet.Filter#doFilter(javax.servlet.ServletRequest,
* javax.servlet.ServletResponse, javax.servlet.FilterChain)
*/
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
// Conditionally select and set the character encoding to be used
if (ignore || (request.getCharacterEncoding() == null)) {
String encoding = selectEncoding(request);
if (encoding != null)
request.setCharacterEncoding(encoding);
}
// Pass control on to the next filter
chain.doFilter(request, response);
}
/*
* (non-Javadoc)
*
* @see javax.servlet.Filter#init(javax.servlet.FilterConfig)
*/
public void init(FilterConfig filterConfig) throws ServletException {
this.filterConfig = filterConfig;
this.encoding = filterConfig.getInitParameter("encoding");
String value = filterConfig.getInitParameter("ignore");
if (value == null)
this.ignore = true;
else if (value.equalsIgnoreCase("true"))
this.ignore = true;
else if (value.equalsIgnoreCase("yes"))
this.ignore = true;
else
this.ignore = false;
}
/*
*
*/
protected String selectEncoding(ServletRequest request) {
return (this.encoding);
}
}
4.在web.xml中添加下列代码
1. <filter>
2. <filter-name>Encoding</filter-name>
3. <filter-class>
4. struts.util.SetCharacterEncodingFilter
5. </filter-class>
6. <init-param>
7. <param-name>encoding</param-name>
8. <param-value>UTF-8</param-value>
9. </init-param>
10. </filter>
11. <filter-mapping>
12. <filter-name>Encoding</filter-name>
13. <url-pattern>/*</url-pattern>
14. </filter-mapping>
看了一下楼主链接中的filter代码，应该没问题的。
如果不加filter，页面采用utf-8，的确会在java代码中出现中文乱码的情况。
然后我就写了一个filter，大致跟链接中的内容一致，然后就解决了乱码问题。
我贴一下我的代码吧
web.xml代码
<filter>
<filter-name>charactarFileter</filter-name>
<filter-class>com.yourcompany.struts.CharactarEncodingFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>charactarFileter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
filter实现代码
package com.yourcompany.struts;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
public class CharactarEncodingFilter implements Filter{
public void destroy() {
}
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
request.setCharacterEncoding("utf-8");
chain.doFilter(request, response);
}
public void init(FilterConfig arg0) throws ServletException {
}
}
就这样，写好后重新发布项目，运行，解决问题。
1.修改Tomcat中conf/server.xml文件中 在 <Connector
port="8080" ...处添加URIEncoding="UTF-8"。
2.编写一个过滤器类CharacterEncodingFilter
package com.lyb.example;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
public class CharacterEncodingFilter implements Filter {
public void destroy() {
// TODO Auto-generated method stub
}
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
request.setCharacterEncoding("UTF-8");
chain.doFilter(request,response);
// TODO Auto-generated method stub
}
public void init(FilterConfig arg0) throws ServletException {
// TODO Auto-generated method stub
}
}
3.在web.xml中添加过滤器映射
<filter>
<filter-name>characterEncoding</filter-name>
<filter-class>com.lyb.example.CharacterEncodingFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>characterEncoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
OK。重新启动Tomcat即可
联系客服
